CONVECTION THEORY BEFORE RELAXATION

Authors
HERRERA L FALCON N
Citation
L. Herrera et N. Falcon, CONVECTION THEORY BEFORE RELAXATION, Astrophysics and space science, 234(1), 1995, pp. 139-152
Citations number
24
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
234
Issue
1
Year of publication
1995
Pages
139 - 152
Database
ISI
SICI code
0004-640X(1995)234:1<139:CTBR>2.0.ZU;2-9
Abstract
The well known mixing length theory of convection is revised for times shorter than the effective time of relaxation into diffusion. Using t he Cattaneo equation for the heat flux, we show that the revised theor y predicts, before relaxation, a convective flux which is quite differ ent from the flux obtained with the Maxwell-Fourier law. Implications of this result in the outcome of some astrophysical processes are comm ented upon.